Add "Field Groups" in the UI to allow expand/collapse of multiple fields organized together

[skyfox675]

Scope & Context

As a user, having many fields is quite cumbersome and hard to find what I am looking for. I would like to have a way to parent/child multiple fields into groups per-say that allows expanding/collapsing of them to make working with large sets of fields more usable.

As an example, this is how I am doing it today in another CRM: